Re: [PATCH 11/14] x86/entry: Clarify irq_{enter,exit}_rcu()

Qian Cai
2020-06-02T18:47:31Z

On Tue, Jun 02, 2020 at 05:05:11PM +0200, Peter Zijlstra wrote:
> On Tue, Jun 02, 2020 at 10:42:35AM -0400, Qian Cai wrote:
>
> > Reverted this commit fixed the POWER9 boot warning,
>
> ARGH, I'm an idiot. Please try this instead:
>
>
> diff --git a/kernel/softirq.c b/kernel/softirq.c
> index a3eb6eba8c41..c4201b7f42b1 100644
> --- a/kernel/softirq.c
> +++ b/kernel/softirq.c
> @@ -438,7 +438,7 @@ void irq_exit_rcu(void)
> */
> void irq_exit(void)
> {
> - irq_exit_rcu();
> + __irq_exit_rcu();
> rcu_irq_exit();
> /* must be last! */
> lockdep_hardirq_exit();

This works fine.